# CVE-2020-15604: Security feature bypass in Trend Micro Security (Consumer)

> Attackers can bypass SSL validation to trick clients into downloading malicious updates, leading to code execution.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-h6wp-6m5m-gc8m

## What is CVE-2020-15604?

CVE-2020-15604 is a high-severity vulnerability in Trend Micro Security (Consumer), published on 24 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CWE-494: Update files are not properly verified.

Weakness: CWE-494 (Download of Code Without Integrity Check), CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2020-15604?

It affects 5 products.


Products: Trendmicro Antivirus\+ 2019, Trendmicro Internet Security 2019, Trendmicro Maximum Security 2019, Trendmicro Officescan Cloud, Trendmicro Premium Security 2019.

## How do I fix CVE-2020-15604?

No fix has been published for CVE-2020-15604 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15604 being exploited?

There is no known exploitation of CVE-2020-15604 in the wild and no public exploit code.

## Other vulnerabilities in Trend Micro Security (Consumer)

- [CVE-2020-24560](https://insights.sbomify.com/CVE-2020-24560/): Security feature bypass in Trend Micro Security (Consumer) (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15604 and fix it if it is affected.

What it is: CVE-2020-15604 is a high-severity vulnerability in Trend Micro Security (Consumer), published on 24 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-15604 in the wild and no public exploit code.

Affected product: Trend Micro Security (Consumer). No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-15604/ (Markdown: https://insights.sbomify.com/CVE-2020-15604/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15604
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15604
- OSV: https://osv.dev/vulnerability/CVE-2020-15604

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15604/
Summaries are generated and may contain mistakes; the official description above is the record.